<ARTICLE>                          5
<CIK>                              0000860745     
<NAME>                             GEODYNE ENERGY INCOME LTD PARTNERSHIP III-A
                                    
                                
<PERIOD-TYPE>                      9-MOS
<FISCAL-YEAR-END>                  DEC-31-1998
<PERIOD-START>                     JAN-01-1998
<PERIOD-END>                       SEP-30-1998
<CASH>                                   324,860
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